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Finding the Fourth Proportional to 71,364, 98,482.32 and 43,069.68

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Solution

The fourth proportional to 71,364, 98,482.32 and 43,069.68 is: 59,436.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,364 : 98,482.32 = 43,069.68 : x
  2. Step 2: Convert to fraction form
    71,364/98,482.32 = 43,069.68/x
  3. Step 3: Cross multiply
    71,364x = 98,482.32 × 43,069.68
  4. Step 4: Simplify right side
    71,364x = 4,241,602,008.06
  5. Step 5: Solve for x
    x = 4,241,602,008.06/71,364
  6. Step 6: Final answer
    x = 59,436.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.